Machine for drawing metals



(No Model.)' 3 sheets Sheet l I I .W; A. Mc'COOL.

MACHINE FOR DRAWING METALS;

' mmw d 1% M 1720872207 69,

(No Model.) 7 3 Sheets-Sheet 2 W. A; 'McGOOL.

7 MAGHINE FOR DRAWING METALS.

No. 364,126. PatentedMay 31,1887.

NRA-f WITIVESSVES: I M4 INVENTOR- /u, ngwwyM/fflm A4 ATTORNEY N. FUERS, rnowmw a hur, wmin um D. c.

(No Model.) Q 3 Sheets-Sheet3.

W. A. McGOOL.

MACHINE FOR DRAWING METALS.

No. 364,126. v Patented May 31,1887.

WIT/VESSfS: TTTfi/h 4 WWII/T0 BYXIAfflM 1 DUMM- ATTORNEY Nv PETE-RS. Phfiul'nhognphr. Washinghn, D. C.

'die and thence to the grip.

UNITED STATES PATENT OFFICE.

WILLIAM A. MoOOOL, or PERRYSVILLE, OHIO.

MACHINE FOR DRAWING METALS.

SPECIFICATION forming part of Letters Patent No. 364,126, dated May 31, 1887.

Application filed November 18, 1856. Scrial'No. 219,244. (No model.) I

T 0 all whom it may concern.-

Be it known that LWILLIAM A. MoCooL, a citizen of the United States, residing at Perrysville, Ashland county, State of Ohio, have invented certain new and useful Improvements in Machines for Drawing Metals, of which the following is a specification.

The object of my invention is to provide a machine for drawing metals, in which the grip is so constructed that the greater the strain upon the metal inthe grip the tighter will the grip hold thework, and,further, in the guiderolls for guiding the material into the die while being shaped or reduced.

One form of niyimproved machine is shown in the accompanying drawings, in which Figure 1 is a top plan, the track being somewhat broken away to show that the track is not shown at full length. Fig.2 is a side elevation, the track being similarly broken away. Figs. 3 and 4 are enlarged views of my improved grip, the grip being closed in Fig. 3 and open in Fig. 4. Fig. 5 is a vertical section of the grip when closed. Figs. 6, 7, and 8 are detailsshowing different views of the guide through which the metal is drawn to, the

The same letters indicate similar parts in the different figures.

A is the supportingframe for the driving mechanism. Bis the stand which supports the die. Between A and B runs aboX or tunnel, O, on top of which is the track D, and through which passes the drawing-chain E upon its return motion. The carriage F is mounted upon rollers a a and carries the grip G,-and is adapted to roll along the track D when it is drawn by the chain E, into one of whose links the hook H is dropped.

The driving mechanism consists of a suitable set of interlocking gears, I I, mounted upon suitable shafts, b-b journaled in the frame A, receiving motion'from a source of power Q tinually taut. The entering gnideL contains four rollers, cl cl, suitably mounted therein, and between these rollers the metal is passed to the die and thence into the grip. This guide is provided with the adj usting-slot e and pinf, the slot being in a bearing secured to the support B, the guide being hung to said support by the pivot g, and the die being stationary just in front of the pivot. justment is to secure the proper level of the metal upon entering the grip, from whatever angle it may come, to the first pair of rollers in the guide. I The grip itself, as shown in Figs. 3, 4, and 5, is constructed as follows: The case M has a shelving mouth, the inclined edges of which correspond to similar inclines on the movable jaws N N. These jaws are pivoted together by the pivot 71, and. are adapted to be thrust forward so as to project partly from the mouth of the case M, in which case the jaws are This ad-"' closed by the action of the inclined edges referred to,nnder theaction of the cam O, which is turned by means of the handle P. It is obvious that when the cam O is turned into the position shown in Fig. 3 the jaws are thrust as far forward as possible and the grip is at its strongest. When the handle is in the position shown in Fig; 4, there is no pressure upon the jaws, which, therefore, are thrown back by the spring S,coiled around the shaft 2', and are thrown open by the resilient force of the spring T, thus releasing the metal rod U. Obviously any intermediate position of the handle 1? and cam Q will givea corresponding tension upon the jaws and regulate the grip upon the metal. The operation is as follows: The metal to be drawn is passed into and through the die L between the rollers d (1 into the mouth of the grip G,.and then the handle P and cam O are turned to thrust the jaws forward to grip the metal with the desired force- The hook Histhen dropped and falls into the nearest link of the chain E and the machine is then started. The revolution of the shaft 0 and wheel K, by

engaging the successive links of the chain, as

before described, gradually draws the chain, and with it the carriage F,from B toward A. The end of the metal being firmly held by the grip is of course drawn forcibly through the die and made to assume the desired character by springs, as herein described, and for the in the way usual in drawing metal. When purposes specified. 15 the metal has been drawn through the die and 2. The adjustable entering guide L, prothe carriage has reached the end of its jourvided with suitable rollers and adapted to be 5 ney, the hook H is lifted clear of the chain, raised or lowered to adapt itself to the various the metal released and removed from the grip, directions from which the metal may be fed to and the carriage is rolled back into position it, to insure its always being passed through 20 for the next piece of metal. the grip at a fixed level, as herein described I claimand shown. IO 1. The above-described grip, consisting of WILLIAM A. MoCOOL.

the jaws N N, inclosed in a box and adapted Witnesses: to be closed and held together under the con- J. P. STEWART, trol of a cam and to be thrown back and apart V. H. ANDERTON. 

